桂辐98-296种茎直接补种新台糖22号宿根蔗试验研究初报  

Preliminary Study Report on Using Guifu98-296 Seed Cane to Reseed in ROC22 Ratoon

作　　者：梁阗[1] 游建华[1] 吴凯朝[1] 韦贵剑[2] 廖庆才 

机构地区：[1]广西农业科学院甘蔗研究所,广西南宁530007 [2]广西农业科学院桂西分院,广西宜州546300 [3]广西象州县水晶乡农业技术推广站,广西象州545800

出　　处：《广西糖业》2016年第4期3-9,共7页Guangxi Sugar Industry

基　　金：广西农业重点科技计划项目"桂辐98-296种茎直接补种延长主栽品种宿根的研究"(201524);国家农业科技成果转化资金"适宜旱坡地种植的高产高糖抗逆性强的甘蔗新品种桂辐98-296中试"(2012GB2E100358)

摘　　要：【目的】探讨采用甘蔗新品种桂辐98-296种茎对新台糖22号宿根蔗直接补种对各自产量和蔗糖品质的影响,以有效地解决宿根蔗缺株断垄问题,延长宿根蔗年限,降低植蔗周期生产成本,为生产应用提供理论依据。【方法】采用桂辐98-296和新台糖22号种茎直接补种新台糖22号宿根,调查补种的桂辐98-296、新台糖22号和新台糖22号宿根蔗的产量性状、蔗茎产量及蔗糖品质表现。【结果】桂辐98-296种茎直接补种处理产量为74.33t/hm2,分别比CK、新台糖22号种茎直接补种处理增产18.36、15.83t/hm2,且差异达极显著水平;新台糖22号种茎直接补种处理产量与CK差异不显著。直接补种不影响新台糖22号宿根蔗的产量和蔗糖分;补种的桂辐98-296的蔗糖分与新台糖22号宿根蔗相当。【结论】桂辐98-296种茎直接补种新台糖22号宿根蔗,可以增加单位面积有效茎数,提高单位面积产量;方法简单、高效、实用,有效延长了宿根年限,提高植蔗的经济效益。[ Objective ] Study the effect of using new variety Guifu98-296 seed cane to reseed in ROC22 ratoon on yield and quality of sugarcane,in order to effectively solve the problem of lack of strain rate in sugarcane ratoon,extend the life of sugarcane ratoon,reduce the production cost of sugarcane planting, and provide theoretical basis for production and application. [Methods ] Used Guifu98-296 and ROC22 seed cane to reseed in ROC22 ratoon,and investigated the yield traits, cane yield and sugarcane quality of the reseeding Guifu98-296,reseeding ROC22 and ROC22 ratoon,respectively. [Result] The cane yield of the treatment of using new variety Guifu98-296 seed cane to reseed in ROC22 ratoon was 74.33t/hm^2,which increased 18.36 and 15.83t/hm^2 than that of CK and the treatment of using ROC22 seed cane to reseed in ROC22 ratoon,respectively,and their difference reached very Significant level. The cane yield of using ROC22 seed cane reseed in ROC22 ratoon and that of CK were not significantly different. Reseeding seed cane did not affect the cane yield and sugar content of ROC 22 ratoon. Sugar content of the reseeding Guifu 98-296 was not different than that of ROC22 ratoon. [ Conclusion ] Using Guifu98-296 seed cane to reseed in ROC22 ratoon increased the stalk number per unit area and the cane yield per unit area. This method was simple, efficient and practical, that effectively extended the life of sugarcane ratoon and improved economic benefits.

关 键 词：桂辐98—296 新台糖22号宿根蔗 种茎直接补种 提高单产 延长宿根年限 

分 类 号：S566.1[农业科学—作物学]